Published November 1999 | Version v1
Journal article Metadata-only

Photon fragmentation in large-Q2 ep collisions at next-to-leading order QCD

Creators

  • 1. Institut fuer Theoretische Teilchenphysik, Universitaet Karlsruhe, 76128 Karlsruhe (Germany)
  • 2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  • 3. II. Institut fuer Theoretische Physik, Hamburg Univ. (Germany)
  • 4. Institut fuer Physik, Johannes-Gutenberg-Universitaet, Staudinger Weg 7, 55099 Mainz (Germany)

Description

We study the production of photons accompanied by jets in large-Q2 deep inelastic scattering. Numerical results for the cross section differential with respect to the fraction of momentum zγ carried by a photon inside a jet at large zγ, up to O(ααs) in perturbative QCD, are presented. The sensitivity to the fragmentation contribution allows one to study the quark-to-photon fragmentation function. Our results can be confronted with future experimental data from HERA. (orig.)

Additional details

Publishing Information

Journal Title
European Physical Journal. C
Journal Volume
11
Journal Issue
1
Journal Page Range
p. 137-144
ISSN
1434-6044

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
32017319
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
DEEP INELASTIC SCATTERING; DIFFERENTIAL CROSS SECTIONS; ELECTRON-PROTON INTERACTIONS; ELECTROPRODUCTION; HADRONS; JET MODEL; PERTURBATION THEORY; PHOTONS; QUANTUM CHROMODYNAMICS; QUANTUM ELECTRODYNAMICS; SEMI-INCLUSIVE INTERACTIONS
Descriptors DEC
BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; ELECTRODYNAMICS; ELECTROMAGNETIC INTERACTIONS; ELECTRON-NUCLEON INTERACTIONS; ELEMENTARY PARTICLES; FIELD THEORIES; INCLUSIVE INTERACTIONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY; SCATTERING

Optional Information

Notes
19 refs.